Lightroom ignores files that are below the photos on top of the stack when you select photos in a folder for rename when the stack are collapsed (default). This presents an extra uncessary step to remember to expand all stacks, batch rename and then collapse stack again.
Most (ie not all) photos in a stack are in a sequence base on capture time anyway either in a series of bracketed shots or a defined time duration. So any renaming of the photos in any folder will include all the photos in a stack and renaming them in sequence would be a given.
Stacks could be already created from the merge process and I would premise one would naturally want the premerge photos to be named sequentially from the merged photo.
Propose a way to default this like in a Preferences setting to rename selected stacks with all photos inside the stacks to be renamed together without having to expand the stacks. Similar how Lightroom handles automatic adding of keyword to enhanced images in the preferences > file handling.
I attached a screenshoot to give an idea what it means with the present renaming only photos on top of the stack.
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